PH-1899

Electrical power and energy

Physics · Secondary 4 · Hard · Electrical power and energy

A heater is connected to a 12 V supply and draws a current of 3.0 A. It is switched on for 5.0 minutes.

Using the electrical power formula, what is the total electrical energy transferred by the heater?

$1.1 \times 10^{4}\,\text{J}$
$1.8 \times 10^{3}\,\text{J}$
$3.6 \times 10^{2}\,\text{J}$
$6.0 \times 10^{4}\,\text{J}$

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